A gem in the EFF's letter ( https://github.com/github/dmca/blob/master/2020/11/2020-11-1... ) > To borrow an analogy from literature, travelers come upon a door that has writing in a foreign language. When translated, the writing says "say 'friend' and enter." The travelers say "friend" and the door opens. As with the writing on that door, YouTube presents instructions on accessing video streams to everyone who comes…
For those that haven’t experienced the joy of Tolkien’s writing, this is a reference to the Elvish inscription on the Doors of Durin in The Fellowship of the Ring , that is simultaneously a riddle and literal instructions on entering.
> The Doors of Durin, Lord of Moria
but as the Tolkien Gateway explains:
> The name Moria means "Black Chasm" and was a derogatory description of the place which the Dwarves did not like, and was given after Durin's Bane took over the city in the Third Age. It is therefore a mystery why that name appears on an inscription made in the Second Age, and made in consent with the Dwarves.
The most common "mitigating explanation" I see is that Tolkien, the "translator," perhaps used the name the reader would be most familiar with (Moria) instead of the city's real name (Khazad-dûm) when transcribing the door's inscription.